%0 Journal Article
%T On the Electrical and Optical Features of the Plasma Coagulation Controller Low Temperature Atmospheric Plasma Jet
%A Alessandro Fassina
%A Barbara Zaniol
%A Daniele Desideri
%A Davide Mancini
%A Emilio Martines
%A Gianluca De Masi
%A Luigi Cordaro
%A Matteo Zuin
%A Piergiorgio Sonato
%A Roberto Cavazzana
%J -
%D 2019
%R https://doi.org/10.3390/plasma2020012
%X Abstract We report on the electrical and optical characterization of the Plasma Coagulation Controller (PCC) device, a low temperature atmospheric plasma source for biomedical applications. This device, designed for the study of plasma-induced blood coagulation, has been developed to operate flexibly in several operational conditions, since it is possible to vary the applied voltage V p and the pulse repetition rate f in a quite wide range ( V p range: 2¨C12 kV, f range: 1¨C40 kHz). Emission spectroscopy measurements were conducted by varying the line of sight along the axis of helium and neon plasma plumes. The increase of the Reactive Oxygen and Nitrogen Species (RONS) has been observed, as one moves from inside the gas pipe to the outside, as a consequence of the gas mixture with the surrounding air. Furthermore, high-speed photographs of the plasma jet were taken, showing that the plasma is not uniformly distributed in a continuous volumetric region, the plasma being concentrated in localized structures called Pulsed Atmospheric-pressure Plasma Streams (PAPS). The propagation velocities of these objects have been examined, noting that they are not related to the propagation of ion sound waves. Rather, we provide indications that the streamer propagation speed is proportional to the electron drift velocity. View Full-Tex
%K Atmospheric Pressure Plasma Jet (APPJ)
%K Low Temperature Plasma (LTP)
%K Cold Atmospheric Plasma (CAP)
%K Plasma Medicine
%K Dielectric Barrier Discharge (DBD)
%K Fast ICCD Imaging
%K Pulsed Atmospheric-pressure Plasma Streams (PAPS)
%U https://www.mdpi.com/2571-6182/2/2/12